The City of Indianapolis has finalized its decision to use part of the site of the former General Motors stamping plant southwest of downtown for the construction of the new Marion County Justice Center.

According to the Indianapolis Business Journal, the new criminal justice complex, which could cost as much as $500 million, would relocate and consolidate county jails, criminal courts and other related offices and agencies from disparate locations in the southeast quadrant of downtown.

“The City appreciates the input received from many people and three decades of study on this project,” Mayor Greg Ballard said in a prepared statement. “The many stakeholders of this facility agree the GM site offers better access for the general public, can be developed at less cost, and will produce significant private development opportunities in the surrounding area.”

In March, the City has selected three development teams to design the project, which will take about 40 acres of land in the northwest corner of the former 110-acre plant site. Plans call for 34 criminal court/hearing rooms and offices for the Marion County Sheriff’s Office and the Probation Department, a 3,500-bed detention facility, 750 community correction beds, 1,500 parking spaces, as well as room for future office and facility expansion.